How to Trace a Layer 2 Path on Cisco Nexus Switches?
Ever been stuck trying to figure out the exact switching path that packets take through your network? Me too. Here’s how I solved the problem without fancy Layer 2 traceroute tools. I’ve recently been working in a data center environment with Nexus 7000...
Frame Relay Switch Configuration-CCNA Certification Training
A Cisco Lab Case Study--- Many CCNA certification candidates want to add a frame relay switch to their Cisco router lab, but aren't quite sure how to configure one. Other candidates aren't quite sure what frames relay switch is, or what Cisco routers...
Cisco ASA 8.3, 8.4 Hairpinning NAT Configuration
Cisco ASA configuration may be a frustrating issue for many Cisco users. In fact, everyone has his own troublesome condition. Here Ethan Banks, a network engineer, share his experience of helping his VPN client access a remote office, as well as an example...
Vlan and VTP Practice Questions
1: You are creating a report recommending the use of VLANs in your network. Which of the following features are provided by VLANs? (Choose three.) A. Segmentation B. Flexibility C. Logging D. Security 2: Which of the following statements regarding VLANs...
What are Private VLANs?
Private VLANs is a method to segment devices at layer 2 that are in the same IP network. Different VLANs are used but they share a common IP network. The most common scenario for a private VLAN is a residential network where customers connect to a switch...
Cisco Readying the New Nexus 3500 Switch
Nexus 3500 will feature ultra-low latency, target Infiniband Cisco has another Nexus Ethernet data center switch in the works, this one with ultra-low latency and a more formidable rival to Infiniband. Details on the Nexus 3500 are unavailable. Cisco...
Using the Ping Command In The Cisco IOS
The ping command is irreplaceable when it comes to troubleshooting. At some point, you will undoubtedly use this command to solve a networking problem. But how do you properly use this command in the Cisco IOS? The Basics of Ping The ping command works...
Cisco: Wireless Networks Need to Catch up with Fixed Line
The explosion of smart devices means that enterprises can no longer fall back on Ethernet As smart devices continue to proliferate, the nature of the network is changing, and organisations need to focus on making their wireless networks as fast, reliable...
10 Commands You Need to Know When Using the Cisco IOS
Preface: Becoming proficient with the Cisco IOS means learning some essential commands. This quick reference describes 10 commands you’ll need to rely on when handling various configuration and troubleshooting tasks. The Cisco IOS provides thousands of...